I find this map of Facebook connections striking for how clearly it shows political and cultural borders. Clear lines are drawn between the US and Canada, among the North-Western South American countries, separating Europe from Asia… China is notably absent from the network, though India is included.

This interactive graph shows how people spend the hours of their day. Certain stereotypes are on average validated: men spend more time working, women spend more time on “household activities”. Ages 15-24 sleep in later than older groups. Other trends are unexpected: black people show smaller “eating” spikes during traditional mealtimes. Women more often report not remembering what they were doing at a specific time.